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HH911T-HH912T

1 & 2 Channel 0.04% Accuracy 4 Thermocouple Types Meter

Models In Stock
  • 1 Input HH911T or Dual Inputs HH912T with delta T
  • Superior Accuracy ± (0.04% |rdg| + 0.3°C)
  • Comes with NIST Traceable Certificate
  • (No Points)
HH911T-HH912T
From $ 568.67
Models In Stock
1 & 2 Channel 0.04% Accuracy 4 Thermocouple Types Meter HH911T-HH912T HH911T-HH912T
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Product Overview
  • Altitude 0 to 15,000 ft
  • Battery life 2000 hr
  • Clock Elapsed statistics run time
  • Display Type 4 Digit LCD
  • Drop 4 drops from 1 m (3.3') to concrete
  • Electrical Connection Miniature Male Thermocouple Connector
  • Height 193 mm
  • Operating Temperature, Max 55 °C
  • Operating Temperature, Min -20 °C
  • Series ID HH911T-HH912T
  • Shock 30 g half sine
  • Temperature Accuracy ± 0.04% rdg + 0.3 °C
  • Temperature Accuracy Note ± (0.04%
  • Temperature Resolution 0.1 °C
  • Temperature Sensor Type Thermocouple
  • Thermocouple Type J, K, T, E
  • Vibration Random 10 to 500 Hz, 0.03 g2 /Hz
  • Width 84 mm

Supported Applications

The Omega HH911T and HH912T are high-accuracy, handheld digital thermocouple thermometers designed for temperature measurement in manufacturing and service applications. These portable instruments support four thermocouple types (J, K, T, E) via Mini-TC connectors.

Operating Conditions & Performance

The series conforms to ITS-90 standards with a basic accuracy of ±(0.04% |rdg| + 0.3 °C). Measurement ranges vary by thermocouple type: Type K (-200 to 1372 °C, -328 to 2502 °F), Type J (-210 to 1200 °C, -346 to 2192 °F), Type T (-250 to 400 °C, -418 to 752 °F), and Type E (-250 to 1000 °C, -418 to 1832 °F). Resolution is 0.1 °C/°F/K for readings between -99.9 and 999.9 degrees, and 1 degree outside this range.

Operating ambient temperature spans -20 to 55 °C (-4 to 131 °F). Humidity limits are defined by temperature: <10 °C (Non-condensing); 10 to 30 °C (5 to 95% RH); 30 to 40 °C (5 to 85% RH); and 40 to 55 °C (5 to 60% RH). The instruments meet MIL-PRF-28800F, Class 2; UL 60079-0 § 26.4.2; IEC 61000-4 2:2009, Class B; EN 55022:2010+A1:2015, Class A; and RoHS2 compliance.

Configuration Options

The series offers single-channel (HH911T) and dual-channel (HH912T) configurations. Key capabilities include:

  • Inputs: One Mini-TC connector for HH911T; two Mini-TC connectors for HH912T.
  • Display & Statistics: 4-digit dual LCD with LED backlight (30-second timeout). Features real-time statistics including MIN, MAX, AVG, RNG, and STDEV. The T1-T2 differential function is available on the HH912T only.
  • Power: Operates on three AA batteries (IEC LR6, ANSI 15 Alkaline) with a typical battery life of 2000 hours.
  • Durability: Rated for shock up to 30g Half Sine and vibration at Random 10 – 500 Hz, 0.03 g²/Hz. Drop tested from 4 drops from 1 m to concrete.

Key Product Differences

The primary distinction between models is channel count: the HH911T provides a single input for one thermocouple, while the HH912T supports dual inputs. Both models feature an ergonomic design with a tilt stand/magnet/hanger and retain power cycle configuration settings (Sensor Type, Temperature Units, Offset Values). The series includes options such as printed manuals (Model HH911T-900) and NIST certificates.

Rated 5 out of 5 by from Great product Great product for its price, does exactly what I need.
Date published: 2017-08-12
Rated 5 out of 5 by from Very nice meter I have purchased 5 of these meters for my business and love 'em. Very accurate and not bothered by atmosphere. The employees here love these meters.
Date published: 2020-06-09
Rated 5 out of 5 by from Works well We have used this thermometer for a long time and is always very reliable.
Date published: 2026-05-01
Rated 5 out of 5 by from Good Product Quality device. Easy to use. Training with staff was simple thus allowing for multiple qualified users.
Date published: 2025-10-03
Rated 5 out of 5 by from Great product! Great product! Delivered on time. Will order again
Date published: 2025-06-23
Rated 5 out of 5 by from It works great! I purchased this so we can do our own calibrations. It was made to order and got to us quickly.
Date published: 2024-10-21
Rated 5 out of 5 by from We will be buying again! Wonderful service and products! Order process was quick and easy!
Date published: 2024-05-06
Rated 5 out of 5 by from Omega HH911T We have used Omega digital thermometers in our lab for years without any issues.
Date published: 2024-01-16
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Can I get a calibration certificate with 3 points and details? I thought in the past this service was provided with additional expense. We are a highly regulated lab that needs the documentation when using standard temperature measurement devices.

Asked by: CTL uci
This should be able to be done so send your request to temp@dwyeromega.com and it's pricing can be investigated and quoted
Answered by: ApplicationsEngineerANB
Date published: 2024-07-18

Hello, would you please let me know what is the part number of thermocouple type K that we can use for HH911T?...thank you!

Asked by: Hernan Mtz
Thank you for your inquiry. Please send us an email at temp@omega.com or call us at 1-888-826-6342.
Answered by: Application Engineer SP
Date published: 2023-04-14

Hello...just need to find a compatible temperature probe (likely T-type) that will go down past -320 deg F. Should be stainless steel

Asked by: JRW2019
Thank you for your question. I recommend that you contact our Temperature Department directly for assistance via chat, phone or e-mail.
Answered by: CB Engineer
Date published: 2019-10-04
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